Rogersville, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.7 °C (low) to 20.1 °C (high). Annual precipitation averages 1191.8 Millimeters. Rogersville is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.8 °C | 7.9 °C | 110.24 mm |
| February | -1.4 °C | 10.3 °C | 102.62 mm |
| March | 2.1 °C | 15.2 °C | 112.78 mm |
| April | 6.8 °C | 20.9 °C | 116.84 mm |
| May | 12.1 °C | 24.9 °C | 99.31 mm |
| June | 16.6 °C | 28.6 °C | 103.63 mm |
| July | 18.7 °C | 30.2 °C | 124.97 mm |
| August | 17.9 °C | 29.8 °C | 80.52 mm |
| September | 14.4 °C | 27.2 °C | 77.98 mm |
| October | 7.7 °C | 21.4 °C | 62.48 mm |
| November | 1.9 °C | 14.8 °C | 85.85 mm |
| December | -1.1 °C | 9.6 °C | 114.55 mm |
| Annual | 7.7 °C | 20.1 °C | 1191.77 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |